The lion has advantage on an attack roll against a creature if at least one of the lion's allies is within 5 ft. of the creature and the ally isn't incapacitated.

Keen Smell

The lion has advantage on Wisdom (Perception) checks that rely on smell.

Pounce

If the lion moves at least 20 ft. straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 13 Strength saving throw or be knocked prone. If the target is prone, the lion can make one bite attack against it as a bonus action.